Debt & Non-recourse Debt - Schedule of Outstanding Borrowings (Details) - USD ($) $ in Millions		Sep. 30, 2019		Aug. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term debt, gross	[1]	$ 822			$ 612
Less: unamortized deferred financing costs and discount		(7)	[2],[3]	$ (4)	(8)	[2],[3]
Long-term debt		815			604
Revolving Credit Facility
Debt Instrument [Line Items]
Less: unamortized deferred financing costs and discount		(5)			(6)
Revolver with an average rate of 3.766%, due 2023 | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross		305			115
Line of Credit | Term loan with an average rate of 3.766%, due 2023
Debt Instrument [Line Items]
Long-term debt, gross		190			197
Less: unamortized deferred financing costs and discount		(2)			(2)
Senior Notes | Senior notes with a rate of 6.125%, due 2024
Debt Instrument [Line Items]
Long-term debt, gross	[1]	300			300
Less: unamortized deferred financing costs and discount		(5)			(6)
Other Debt
Debt Instrument [Line Items]
Long-term debt, gross	[1]	27			0
Non-recourse Debt
Debt Instrument [Line Items]
Long-term debt, gross	[4]	804			766
Less: unamortized deferred financing costs and discount	[5]	(9)			(7)
Long-term debt		795			759
Non-recourse Debt | Timeshare Facility with an average rate of 3.164%, due 2021
Debt Instrument [Line Items]
Long-term debt, gross		0			120
Less: unamortized deferred financing costs and discount		(3)			(3)
Non-recourse Debt | Securitized Debt with a rate of 2.280%, due 2026
Debt Instrument [Line Items]
Long-term debt, gross	[4]	0			33
Non-recourse Debt | Securitized Debt with an average rate of 1.810%, due 2026
Debt Instrument [Line Items]
Long-term debt, gross		52			74
Non-recourse Debt | Securitized Debt with an average rate of 2.711%, due 2028
Debt Instrument [Line Items]
Long-term debt, gross		162			206
Non-recourse Debt | Securitized Debt with an average rate of 3.602%, due 2032
Debt Instrument [Line Items]
Long-term debt, gross		293			333
Non-recourse Debt | Securitized Debt with an average rate of 2.431%, due 2033
Debt Instrument [Line Items]
Long-term debt, gross		$ 297			$ 0

[1] As of September 30, 2019 and December 31, 2018, weighted-average interest rates were 4.739 percent and 5.170 percent, respectively.

[2] Amount does not include deferred financing costs of $5 million as of September 30, 2019 and $6 million as of December 31, 2018, relating to our revolving facility included in Other Assets in our condensed consolidated balance sheets.

[3] Amount includes deferred financing costs related to our term loan and senior notes of $2 million and $5 million, respectively, as of September 30, 2019 and $2 million and $6 million as of December 31, 2018.

[4] As of September 30, 2019 and year ended December 31, 2018, weighted-average interest rates were 2.874 percent and 3.126 percent, respectively.

[5] Amount relates to securitized debt only and does not include deferred financing costs of $3 million as of September 30, 2019 and December 31, 2018 relating to our Timeshare Facility which are included in Other Assets in our condensed consolidated balance sheets.